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llc2(7d) [sunos man page]

llc2(7D)							      Devices								  llc2(7D)

NAME
llc2 - Class II logical link control driver DESCRIPTION
The llc2 logical link control driver interfaces network software (NetBIOS, SNA, OSI, and so on) running under the Solaris operating envi- ronment to a physical LAN network controlled by one of the supported communications adapters. The llc2 driver, which appears as a STREAMS driver to the network software, resides in the kernel and is accessed by standard UNIX STREAMS functions. This version of the llc2 driver includes support for both connectionless and connection-oriented logical link control class II (llc2) oper- ations for Ethernet, Token Ring, and FDDI adapters when accessed through the appropriate Solaris MAC layer driver. The Data Link Provider Interface (DLPI) to the llc2 driver enables multiple and different protocol stacks, (including NetBIOS and SNA), to operate simultaneously over one or more local area networks. To start the llc2 driver by default, rename file /etc/llc2/llc2_start.default to /etc/llc2/llc2_start. This allows the /etc/rc2.d/S40llc2 script to build up the configuration file for each ppa interface in /etc/llc2/default/llc2.* and start llc2 on each interface. To verify the configuration files, manually run /usr/lib/llc2/llc2_autoconfig. For more information on the llc2 driver, see the IEEE standard 802.2 Logical Link Control. OBTAINING LLC2 STATISTICS You can obtain LLC2 statistics or reset the statistics counter to zero using the ILD_LLC2 ioctl. The ILD_LLC2 ioctl has a number of subcom- mands. The following retrieve LLC2 statistics: | Name | Function LLC2_GET_STA_STATS | Get station statistics LLC2_GET_SAP_STATS | Get SAP statistics LLC2_GET_CON_STATS | Get connection statistics The structure used depends on the subcommand sent. LLC2_GET_STA_ STATS The LLC2_GET_STA_STATS command retrieves statistics on a particular Physical Point of Attachment (PPA). When sending the LLC2_GET_STA_STATS command, the llc2GetStaStats structure is used: typedef struct llc2GetStaStats { uint_t ppa; uint_t cmd; uchar_t clearFlag; uchar_t state; ushort_t numSaps; uchar_t saps[LLC2_MAX_SAPS]; uint_t nullSapXidCmdRcvd; uint_t nullSapXidRspSent; uint_t nullSapTestCmdRcvd; uint_t nullSapTestRspSent; uint_t outOfState; uint_t allocFail; uint_t protocolError; } llc2GetStaStats_t; The members of the structure are: | Member | Description cmd |LLC2_GET_STA_STATS clearFlag |Clear counters flag. Set this to |0 to retreive statistics and to 1 |to reset all counters to 0. state |Station component state. Possible |values are ????? numSaps |Number of active SAPs in the saps |array saps |An array of active SAP values nullSapXidCmdRcvd |Number of NULL SAP XID commands |received nullSapXidRspSent |Number of NULL SAP XID responses |sent nullSapTestCmdRcvd |Number of NULL SAP TEST commands |received nullSapTestRspSent |Number of NULL SAP TEST responses |sent outOfState |Number of invalid events received allocFail |Number of buffer allocation fail- |ures protocolError |Number of protocol errors LLC2_GET_SAP_ STATS The LLC2_GET_SAP_STATS command retrieves statistics related to a particular SAP. When sending the LLC2_GET_SAP_STATS command, the llc2Get- SapStats structure is used: typedef struct llc2GetSapStats { uint_t ppa; uint_t cmd; uchar_t sap; uchar_t clearFlag; uchar_t state; uint_t numCons; ushort_t cons[LLC2_MAX_CONS]; uint_t xidCmdSent; uint_t xidCmdRcvd; uint_t xidRspSent; uint_t xidRspRcvd; uint_t testCmdSent; uint_t testCmdRcvd; uint_t testRspSent; uint_t testRspRcvd; uint_t uiSent; uint_t uiRcvd; uint_t outOfState; uint_t allocFail; uint_t protocolError; } llc2GetSapStats_t; The members are: | Member | Description ppa |Physical Point of Attachment number cmd |LLC2_GET_SAP_STATS sap |SAP value clearFlag |Clear counters flag. Set this to 0 to |retreive statistics and to 1 to |reset all counters to 0. state |SAP component state numCons |Number of active connections in the |cons array cons |Array of active connection indexes xidCmdSent |Number of XID commands sent xidCmdRcvd |Number of XID responses received | xidRspSent |Number of XID responses sent xidRspRcvd |Number of XID responses received testCmdSent |Number of TEST commands sent testCmdRcvd |Number of TEST commands received testRspSent |Number of TEST responses sent testRspRcvd |Number of TEST responses received uiSent |Number of UI frames sent uiRcvd |Number of UI frames received outOfState |Number of invalid events received allocFail |Number of buffer allocation failures protocolError |Number of protocol errors LLC2_GET_CON_ STATS The LLC2_GET_CON_STATS command retrieves statistics related to a particular connection component. When sending the LLC2_GET_CON_STATS com- mand, the llc2GetConStats structure is used: typedef struct llc2GetConStats { uint_t ppa; uint_t cmd; uchar_t sap; ushort_t con; uchar_t clearFlag; uchar_t stateOldest; uchar_t stateOlder; uchar_t stateOld; uchar_t state; ushort_t sid; dlsap_t rem; ushort_t flag; uchar_t dataFlag; uchar_t k; uchar_t vs; uchar_t vr; uchar_t nrRcvd; ushort_t retryCount; uint_t numToBeAcked; uint_t numToResend; uint_t macOutSave; uint_t macOutDump; uchar_t timerOn; uint_t iSent; uint_t iRcvd; uint_t frmrSent; uint_t frmrRcvd; uint_t rrSent; uint_t rrRcvd; uint_t rnrSent; uint_t rnrRcvd; uint_t rejSent; uint_t rejRcvd; uint_t sabmeSent; uint_t sabmeRcvd; uint_t uaSent; uint_t uaRcvd; uint_t discSent; uint_t outOfState; uint_t allocFail; uint_t protocolError; uint_t localBusy; uint_t remoteBusy; uint_t maxRetryFail; uint_t ackTimerExp; uint_t pollTimerExp; uint_t rejTimerExp; uint_t remBusyTimerExp; uint_t inactTimerExp; uint_t sendAckTimerExp; } llc2GetConStats_t; The members of the structure are: | Member | Description ppa | Physical Point of Attachment number cmd | LLC2_GET_CON_STATS sap | SAP value con | Connection index clearFlag | Clear counters flag. Set this to 0 | to retreive statistics and to 1 to | reset all counters to 0. stateOldest, stateOlder, | The four previous dlpi states of stateOld, state | the connection sid | SAP value and connection index dlsap_t rem | Structure containing the remote MAC | address and SAP flag | Connection component processing | flag dataFlag | DATA_FLAG k | transmit window size vs | Sequence number of the next I-frame | to send vr | Sequence number of the next I-frame | expected nrRcvd | Sequence number of the last I-frame | acknowledged by the remote node retryCount | Number of timer expirations numToBeAcked | Number of outbound I-frames to be | acknowledged numToResend | Number of outbound I-frames to be | re-sent macOutSave | Number of outbound I-frames held by | the MAC driver to be saved on | return to LLC2 macOutDump | Number of outbound I-frames held by | the MAC driver to be dumped on | return to LLC2 timerOn | Timer activity flag iSent | Number of I-frames sent iRcvd | Number of I-frames received frmrSent | Number of frame rejects sent frmrRcvd | Number of frame rejects received rrSent | Number of RRs sent rrRcvd | Number of RRs received rnrRcvd | Number of RNRs received rejSent | Number of rejects sent rejRcvd | Number of rejects received sabmeSent | Number of SABMEs sent sabmeRcvd | Number of SABMEs received uaSent | Number of UAs sent uaRcvd | Number of UAs received discSent | Number of DISCs sent outOfState | Number of invalid events received allocFail | Number of buffer allocation fail- | ures protocolError | Number of protocol errors localBusy | Number of times in a local busy | state remoteBusy | Number of times in a remote busy | state maxRetryFail | Number of failures due to reaching | maxRetry ackTimerExp | Number of ack timer expirations pollTimerExp | Number of P-timer expirations rejTimerExp | Number of reject timer expirations remBusyTimerExp | Number of remote busy timer expira- | tions inactTimerExp | Number of inactivity timer expira- | tions sendAckTimerExp | Number of send ack timer expira- | tions | FILES
/dev/llc2 Clone device used to access the driver /etc/llc2/default/llc2.? configuration files (One file per ppa interface.) ATTRIBUTES
See attributes(5) for a description of the following attribute: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWllc | +-----------------------------+-----------------------------+ SEE ALSO
llc2_autoconfig(1), llc2_config(1), llc2(4) SunOS 5.10 12 Aug 1999 llc2(7D)

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